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Electron shell
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Electron shell
1st shell = holds 2 electrons
- 2nd shell = holds 8 electrons
- 3rd shell = 8 electrons
- 2nd shell = holds 8 electrons
An atoms have the same number of protons and electros = no charge
Group number = number of electrons on outer shell
- Period number = number of occupied shells
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- GCSE Science Mind Map on Electron shell, created by Joana Gomes on 26/10/2016.
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- Joana Gomes
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